> David Hobby <[email protected]> wrote:
> Hi. I just saw the following in article summaries
> from Nature. The actual article is behind a paywall,
> but this seems interesting.
> > Stars similar to the Sun in age, mass and composition show a wide
> > range of lithium abundances... The surface
> > lithium abundance of the Sun itself is 140 times less than the
> > primordial Solar System value, yet the Sun's surface convective zone
> > is thought not to extend far enough into the interior to reach
> > regions where lithium can...be burned. A new survey
> > of Sun-like stars with and without detected planets now suggests that
> > the planets may hold the key to the Sun's missing lithium. The stars
> > with planets have less than 1% of the primordial lithium abundance,
> > whereas those with no detected planets range more widely, with half
> > of them having about 10% of primordial abundance. It is possible that
> > the presence of protoplanets increases mixing in the stellar disk so
> > that lithium reaches interior regions where the temperatures are
> > sufficient to destroy it.
Are protoplanets made of protomatter?! Just who are these surveyors, and are
they being unethical scientists!? Is protomatter relateted to
"protomorphogens," the 'primitive matter which makes up organs' and is sold on
a website I decline to pass on? (Not kidding about the latter - various
friends with currently non-curable diseases send me stuff and ask about
it...Predators abound.)
Debbi
Genesis Wave Maru ;}
_______________________________________________
http://mccmedia.com/mailman/listinfo/brin-l_mccmedia.com
